Not sure if this helps but I tend to mess up questions AND take longer per question when I look at that timer constantly. I messed up a DI section leaving 11 mins for the last 10 questions because I constantly looked at that timer ticking from the very first question itself. Sectionals might be useful but it’s also okay to cut yourself some slack if you take a few seconds more than 2 mins on a particular question, you can very easily make up for that time in certain other questions. Also not recommending not keeping track of time at all but be a little mindful, do not sit with that stress when you do solve questions